// https://github.com/dlang/dmd/issues/21740
int x²;
int \u2160;
int \u2182;
int \u00C0;
int \u00C1;
int \U000000C2;
int wh\u00ff;
int a\u00c4b\u0441\U000003b4e;
int b\u3021𗘰\u3023e;

int a\U000000aa[4];

typedef int \u0441b\U000003b4 ;
int a\u00c4(\u0441b\U000003b4)
{
}
